Saturday, July4, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Sausalito, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:51AMSunset 8:36PM Saturday July 4, 2020 5:18 AM PDT (12:18 UTC) Moonrise 7:35PMMoonset 4:16AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 206 Am Pdt Sat Jul 4 2020
.small craft advisory in effect through Sunday evening...
Today..NW winds 15 to 25 kt. Gusts up to 35 kt this afternoon. Wind waves 4 to 5 ft. NW swell 6 to 8 ft at 8 seconds and sw 2 to 3 ft at 18 seconds.
Tonight..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 4 to 5 ft. NW swell 8 to 10 ft at 8 seconds and sw 2 to 3 ft at 18 seconds.
Sun..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 4 to 5 ft. NW swell 8 to 10 ft at 8 seconds and sw 2 to 3 ft at 16 seconds.
Sun night..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 5 to 6 ft. NW swell 8 to 10 ft at 8 seconds and sw 2 to 3 ft at 16 seconds.
Mon..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 6 to 7 ft. NW swell 8 to 10 ft at 9 seconds and sw 2 to 3 ft at 15 seconds.
Mon night..NW winds 20 to 30 kt with gusts up to 35 kt. Wind waves 6 to 7 ft. NW swell 7 to 9 ft at 8 seconds and sw around 2 ft at 15 seconds.
Tue..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. NW swell 5 to 7 ft and sw around 2 ft.
Wed..NW winds 15 to 25 kt. Wind waves 3 to 4 ft. NW swell 4 to 6 ft and S around 2 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...seas 5 to 7 ft with dominate swell period of 8 seconds. Across the bar...seas 7 to 9 ft with dominate swell period of 8 seconds. Maximum ebb current of 4.0 kt at 03:49 am Saturday and 1.7 kt at 04:55 pm Saturday.
PZZ500 206 Am Pdt Sat Jul 4 2020
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will increase across the coastal waters today and tonight as surface high pressure builds over the eastern pacific. Moderate to strong winds will then persist over the waters through the holiday weekend. These winds will generate steep fresh swell resulting in hazardous seas conditions, particularly for smaller vessels. A long-period southerly swell train will persist through the weekend. This will cause occasional breaking waves over nearshore shoals and strong currents along the coast, especially near points and headlands.


7 Day Forecast for Marine Location Near Sausalito, CA
   Hourly   EDIT   Help
location: 37.8, -122.5     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KMTR 041127 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 427 AM PDT Sat Jul 4 2020

SYNOPSIS. High pressure builds Saturday and Sunday with a warming trend for inland areas as the marine layer mixes out. The ridge breaks down early next week as a dry trough passes through bringing a return of onshore winds and the marine layer.

DISCUSSION. as of 3:00 AM PDT Saturday . Happy fourth of July! Visible satellite imagery shows mostly clear skies under the bright Buck moon early this morning with little indication of a marine layer. A few patches of stratus exist directly over Half Moon Bay and throughout the Monterey Bay area early this morning with no additional stratus evident until Point Conception well to the south in Santa Barbara county. The marine layer was at roughly 1800 feet 24 hours ago but is now being suppressed both by subsidence aloft under a building ridge from the southeast and by the entrainment of dry air from turbulent mixing from brisk winds developing from the north. These northwest winds will be fairly breezy to occasionally gusty through the afternoon and evening periods along the immediate coast and through coastal gaps.

A 590dm 500mb high pressure ridge will continue to backbuild into California today and bring a general warming and drying trend to the area, particularly across the interior where temperatures will rebound to become slightly to somewhat above normal (+6-10) with afternoon highs in the mid 80s to mid 90s. Warm, dry air associated with this high pressure system has already advected into the region above the nocturnal inversion early this morning. As of 2am, weather stations at or above 1250 feet reported temperature generally 5 to 20 degrees higher than and humidity values 30-60% lower from the same time last night. This warmer, drier air will mix down to the surface during the day today and result in today being the warmest and driest of the next few days. Given that this is the fourth of July, these warm, dry conditions will elevated fire weather concerns due to an increase in outdoor activities, particularly from fireworks and cookouts. Please be mindful of these warm, dry conditions and dry fuels when planning your holiday weekend. In addition, the marine layer will be nonexistent today and tonight as it continues to be compressed and scoured out, resulting in mostly clear conditions for tonight.

Sunday will be similar to Saturday except slightly cooler with moderately stronger onshore winds. The same 564dm 500mb low pressure trough that was draped over the region this last Thursday will once again dig southward and take over the regional weather pattern through the day Monday as a series of vorticity pulses round the base of the trough and intensify the feature. As a result, the marine layer will rebound while a cooling, moistening trend will occur under an enhanced onshore flow regime. This pattern lingers through mid week with mostly seasonable conditions regionwide. By late next week, the Bay Area is once again positioned between low pressure to the north and a backbuilding ridge to the southeast. Medium to long term range models disagree slightly on the exact positioning of these features and that actually plays a significant role as a few few hundred mile difference would place the majority of the region under troughing or ridging. For now, the Euro favors the backbuilding ridge and 590dm heights while the GFS members favor a weaker ridge and 582dm heights.

AVIATION. As of 04:27 AM PDT Saturday . For 12Z TAFs. A compressed marine layer remains in place at around 1,000 ft AGL per the Fort Ord Profiler. Satellite imagery shows mainly clear skies aside from some low clouds around the Monterey Bay. VFR conditions through the period for most sites as drier air moves in from the northwest. IFR/LIFR conditions around the Monterey Bay with patchy fog before clearing mid to late morning. Light winds this morning increasing and turning onshore this afternoon around 10-15 kt with locally higher gusts.

Vicinity of KSFO . VFR conditions through the period with patches of low clouds possible this morning around the SF Bays. W/NW winds this morning around 10 kt increasing this afternoon to 15 to 20 kt with gusts to 25 kt.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . Satellite shows low clouds around the Monterey Bay and part way down the Salinas Valley. LIFR/IFR conditions with patchy fog this morning before VFR conditions prevail mid to late morning through the rest of the day. Low clouds may return tonight, though confidence is low.

MARINE. as of 2:06 AM PDT Saturday . Northwest winds will increase across the coastal waters today and tonight as surface high pressure builds over the eastern Pacific. Moderate to strong winds will then persist over the waters through the holiday weekend. These winds will generate steep fresh swell resulting in hazardous seas conditions, particularly for smaller vessels. A long-period southerly swell train will persist through the weekend. This will cause occasional breaking waves over nearshore shoals and strong currents along the coast, especially near points and headlands.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. SCA . Pigeon Pt to Pt Pinos 0-10 nm from 9 AM SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Reyes to Pigeon Pt 0-10 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm SCA . SF Bay from 3 PM SCA . Mry Bay from 3 PM



PUBLIC FORECAST: DRP AVIATION: AS MARINE: AS

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/nwsbayarea www.twitter.com/nwsbayarea www.youtube.com/nwsbayarea


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FTPC1 - 9414290 - San Francisco, CA 2 mi48 min SW 2.9 G 5.1 55°F 62°F1016.5 hPa
PXSC1 5 mi48 min 57°F 54°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 6 mi48 min W 1.9 G 4.1 56°F 1015.2 hPa
46237 - San Francisco Bar, CA (142) 7 mi48 min 60°F5 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 7 mi32 min S 7 55°F 1016 hPa
OBXC1 8 mi48 min 57°F 56°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 9 mi48 min WSW 8 G 9.9
OKXC1 - 9414776 - Oakland (Berth 34), CA 9 mi48 min WSW 4.1 G 6 57°F 1016.3 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 10 mi48 min SSW 8.9 G 13 58°F 1016.5 hPa
RCMC1 - 9414863 - Richmond, CA 10 mi48 min S 6 G 8.9 57°F 64°F1015.9 hPa
AAMC1 - 9414750 - Alameda, CA 11 mi48 min WNW 1.9 G 4.1 58°F 69°F1016.4 hPa
LNDC1 12 mi48 min WSW 1.9 G 2.9 58°F 1016.2 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 18 mi38 min WNW 7.8 G 9.7 55°F 55°F1016.9 hPa53°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 22 mi48 min WSW 7 G 9.9 59°F 1015.4 hPa
RTYC1 - 9414523 - Redwood City, CA 25 mi48 min SE 1 G 1.9 57°F 74°F1016.7 hPa
UPBC1 26 mi48 min NW 8.9 G 12
MZXC1 - 9415102 - Martinez-Amorco CA 26 mi48 min WNW 7 G 8.9 58°F 68°F1015.5 hPa
PCOC1 - 9415144 - Port Chicago, CA 30 mi48 min W 16 G 19 59°F 69°F1014.9 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 36 mi48 min NW 9.9 G 13 65°F 1014.4 hPa
SFXC1 - San Francisco Bay Reserve, CA 37 mi93 min W 7
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 37 mi28 min NW 12 G 16 55°F 6 ft1017.5 hPa52°F

Wind History for San Francisco, CA
(wind in knots)    EDIT      (on/off)   Help
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last
24hr
SW5
G9
W6
G9
SW5
G8
SW7
G10
SW6
G10
SW7
G14
W7
G10
W7
G15
W11
G18
SW10
G17
SW10
G17
SW9
G17
SW9
G14
W10
G16
W12
G21
SW10
G13
SW4
G10
SW4
G8
S2
G6
SW4
G7
SW3
G6
SW3
SW4
SW3
1 day
ago
SW7
G10
S4
NW6
NW6
G9
W6
G11
W8
G15
SW11
G15
SW9
G16
S15
G23
SW14
G23
SW12
G19
W11
G18
SW13
G20
SW11
G17
SW8
G15
SW11
G18
SW8
G18
W8
G15
W7
G16
SW9
G14
SW7
G11
SW8
G15
W7
G11
SW7
G13
2 days
ago
SW9
G14
SW9
G16
SW7
G11
SW7
G11
W9
G14
SW7
G14
SW13
G19
W10
G16
SW11
G18
W4
G15
SW14
G21
W15
G24
SW13
G21
SW10
G17
SW14
G23
W11
G21
SW17
G23
SW9
G15
SW9
G16
SW9
G16
SW11
G18
SW10
G17
SW9
G17
SW6
G12

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA14 mi22 minWNW 810.00 miFair55°F50°F83%1016.2 hPa
Oakland, Metro Oakland International Airport, CA16 mi25 minNE 310.00 miFair55°F51°F87%1016.5 hPa
Half Moon Bay Airport, CA20 mi23 minN 06.00 miFog/Mist46°F46°F100%1017.3 hPa
Hayward, Hayward Air Terminal, CA22 mi24 minNE 410.00 miFair56°F48°F75%1017 hPa
San Carlos Airport, CA23 mi23 minN 010.00 miFair57°F48°F72%1016.6 hPa
Novato / Gnoss Field, CA24 mi43 minN 010.00 miFair48°F46°F94%1016.3 hPa

Link to 5 minute data for KSFO

Wind History from SFO (wind in knots)
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last 24hrS5S3CalmCalmNW9N11NW13NW16NW17NW18NW20NW18NW16NW12NW10NW11NW9NW9NW9NW9NW9W7W6W8
1 day agoS6S9S8SE3NE5NE6N10NE74SW10SW10
G17
W10SW8S7S7CalmNW4NW3W4SW4W4W44W4
2 days agoW4CalmCalmSE5E5NE5NE6NE6NE5NW12NW11NW12
G19
NW12NW11NW9NW7NW5NW6S8S10S8S6S5S5

Tide / Current Tables for San Francisco, California (2) (expired 1998-12-31)
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
San Francisco
Click for Map
Sat -- 05:15 AM PDT     Moonset
Sat -- 05:37 AM PDT     -1.31 feet Low Tide
Sat -- 05:53 AM PDT     Sunrise
Sat -- 01:01 PM PDT     4.91 feet High Tide
Sat -- 05:18 PM PDT     2.85 feet Low Tide
Sat -- 08:34 PM PDT     Moonrise
Sat -- 08:35 PM PDT     Sunset
Sat -- 09:44 PM PDT     Full Moon
Sat -- 11:31 PM PDT     6.75 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
6.353.11.2-0.3-1.2-1.3-0.80.11.32.53.74.64.94.643.32.933.54.35.36.16.7

Tide / Current Tables for San Francisco Bay Entrance (Golden Gate), California Current
   EDIT      (on/off)   Help   One Week of Data
San Francisco Bay Entrance (Golden Gate)
Click for Map
Sat -- 12:36 AM PDT     -0.00 knots Slack
Sat -- 03:59 AM PDT     -5.53 knots Max Ebb
Sat -- 05:15 AM PDT     Moonset
Sat -- 05:53 AM PDT     Sunrise
Sat -- 07:58 AM PDT     0.00 knots Slack
Sat -- 11:08 AM PDT     4.40 knots Max Flood
Sat -- 02:26 PM PDT     -0.01 knots Slack
Sat -- 04:42 PM PDT     -2.34 knots Max Ebb
Sat -- 07:46 PM PDT     0.00 knots Slack
Sat -- 08:34 PM PDT     Moonrise
Sat -- 08:35 PM PDT     Sunset
Sat -- 09:44 PM PDT     Full Moon
Sat -- 10:36 PM PDT     3.03 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.2-0.9-3.2-5-5.5-5.1-4-2.20.12.33.84.44.12.80.9-1-2.1-2.3-1.9-10.31.92.93

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (8,2,3,4)
      (on/off)   Help

Ground Weather Radar Station San Francisco Bay Area, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.